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INDONESIA
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Published by Universitas Negeri Jakarta
ISSN : 23021829     EISSN : 24769398     DOI : https://doi.org/10.21009/03
Core Subject : Science, Education, Engineering,
Electrical & Electronics Engineering Energy Physics Other
Focus and Scope: Physics education Physics Instrumentation and Computation Material Physics Medical Physics and Biophysics Physics of Earth and Space Physics Theory, Particle, and Nuclear Environmental Physics and Renewable Energy
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 976 Documents
 17   18   19   20   21 
FABRIKASI TINTA SPIDOL WHITEBOARD BERBAHAN DASAR PIGMEN ORGANIK DARI ENDAPAN MINUMAN KOPI Amalia Puspita Rengganis; Sulhadi Sulhadi; Teguh Darsono; Dhamar Putra Fajar
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (650.941 KB) | DOI: 10.21009/03.SNF2017.02.MPS.17

Abstract

The ground of coffee drink does not have a high use value. An attempt has been made to utilize the coffee drink as an organic pigment for the whiteboard marker ink. Making organic pigment was done by reducing the particle size of coffee beverage using ball milling and screen mesh. The process of making the ink is by mixing the ingredients of ink such as Arabic gum, aquades, alcohol, and PEG on organic pigments. The process of making the ink is done by variation of arabic gum binder composition from 1 gram up to 3.5 grams. Based on the test result, the addition of arabic gum mass will increase the viscosity and level of ink adhesion. While in the transmittance test, the addition of arabic gum mass will decrease the intensity value of light transmitted by ink Keywords: Ink, Organic Pigment, Ground of Coffee.
PEMANFAATAN DAUN JATI SEBAGAI PIGMEN WARNA CAT TEMBOK Suhardi Effendy; Sulhadi Sulhadi; Teguh Darsono
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.525 KB) | DOI: 10.21009/03.SNF2017.02.MPS.18

Abstract

The utilization of teak leaf extract containing carotenoids for natural dyes on the manufacture of wall paint. Teak leaf extract boiled with 350 ml of water until boiling and filtered with screen mash T100. As glue is used a blend of tapioca flour and lime tohor as much as 75 grams with composition ratio (1: 3, 1: 1,3: 1). As a solvent used mix aqudes, PVAc glue and white cement. In this research, the process of making paint is by mixing all the material from pigment, adhesive, and solvent until homogeneous. Paint quality is shown through viscosity test, adhesion and density. The results of this study indicate that the best paint formulation composition is found in adhesive variation with a ratio of 3: 1 which produces density 1,3 gr/ml, viscosity 0,26 poise and 95% adhesion. Keywords: teak leaves, wall paint, viscosity test, adhesion and density
EKSPERIMEN PESAWAT ATWOOD BERBASIS PENGOLAHAN APLIKASI TRACKER UNTUK MENGAMATI FENOMENA GERAK LURUS BERATURAN DAN GERAK LURUS BERUBAH BERATURAN PADA PEMBELAJARAN FISIKA SMA Firman Nugraha; Resti Wulansari; Inka Danika; Vina Nurafiah; Asri Nur Lathifah; Fitri Nurul Sholihat; Hana Susanti; Muhamad Gina Nugraha; Kartika Hajar Kirana
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.578 KB) | DOI: 10.21009/03.SNF2017.01.EER.03

Abstract

Physics is one of science branch that become the cornerstone of many of advanced technology development, so the process of learning physics should not only focused on the concept mastery but also concerning the discovery aspect. In that case, experiment activity has been really important in learning physics. One of the most common experiment activity which used to explain uniform rectinilier motion and accelerated uniform rectinlier motion is using Atwood Machine. From the observations, it is showed that the measure of the motion parameter has done manually using stopwatch and ruler. The result from this experiment was subjective and also it was cannot give exact characteristic of this two motion. One of the solution for this problem is use tracker application. In this experiment, a body is recorded using High Definition camera with 24 frame per second shutter speed. The result from data processing with tracker has shown that the graphic of position depend on time for uniform rectilinier motion (y=f(t)) is a linier line with positive gradient and the graphic of the velocity depend on time (v=f(t)) is flat line shaped. For the uniform accelerated rectilinier motion, the graphic of position depend on time (y=f(t)) is a graphic from quadratic function and the graphic of the velocity depend on time (v=f(t)) is a linier line with positive gradient. Based on the result of the data analysis, it is concluded that the use of tracker application on atwood machine is able to show the characteristic of uniform rectilinier motion and uniform accelerated rectilinier motion so it is worth to use in physics learning at school. Keywords: Uniform Accelerated Rectilinier Motion, Uniform Rectilinier Motion, Tracker, Atwood Machine.
OPTIMALISASI EKSPERIMEN KERETA DINAMIKA: “APLIKASI TRACKER VS TICKER TIMER” UNTUK MENGURANGI MISKONSEPSI PADA MATERI GERAK LURUS BERUBAH BERATURAN (GLBB) Elsa Anggiya Nurinsani; Nia Kurniasih; Nurdini Nurdini; Ating Herawati; Raden Giovanni Ariantara; Fitri Nurul Sholihat; Hana Susanti; Muhamad Gina Nugraha; Kartika Hajar Kirana
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.657 KB) | DOI: 10.21009/03.SNF2017.01.EER.04

Abstract

In the experiments, misconceptions can occur because of lack information or even incorrect information from the experiments performed. One of the experiments that are prone to misconceptions is a non uniform linear motion experiment. Generally, the misconceptions is the mass of objects affect for the acceleration of objects motion on the path of the sloping field. This research was conducted to compare the results of experimental data processing using two methods, that is using ticker timer and tracker application to determine more precise method, so it is expected to reduce the occurrence of misconception. This research was conducted by recording the dynamics of the mobility moves that change its mass using a high resolution camera with 24 frame / sec shooting speed. The data in the form of tape result of ticker timer in analysis using microcal origin software and video recording data were analyzed using tracker application. The result of data analysis shows that data processing using tracker produces more constant acceleration data compared with data from timer ticker band, so with application of tracker can be concluded there is no mass effect to acceleration motion of moving objects on sloping path. Utilization of tracker applications in the dynamics train experiment can be used as an alternative that can be used to reduce misconceptions on the teaching material of non uniform linear motion. Keywords: non uniform linear motion, tracker, misconception.
PENGEMBANGAN APLIKASI ANDROID BERUPA WORKBOOK FISIKA BERBASIS MOODLE SEBAGAI PENDUKUNG MOBILE LEARNING UNTUK SISWA SMA Veni Apriani; Wisnu Broto
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.194 KB) | DOI: 10.21009/03.SNF2017.01.RND.04

Abstract

Abstract This research is to develop physics workbook with Android OS based Moodle an alternative learning for students. In addition to knowing the quality of mobile learning moodle-based media, according to the experts the material and Senior High School physics teacher and student response towards mobile learning that have been developed. This research to enhance the interest of students, the development of this application can also provide convenience for the students in understanding the concept through the workbook that can direct the students find the concept itself. The learning material is restricted to special theory of relativity for class XII Senior high school. In this Research, the method used is research and development. Based on small scale field trials retrieved response students strongly agree (SS) with a percentage of 83.67%, while the large scale field trials 91.08% of the score is ideal. And based on the average score results validation expert material of 87.50%, results validation 84.25% of media experts, the results of the empirical test of 78.49% physics teacher, and student test results of 79.23%, thus it can be concluded that Physics workbook developed already qualify as media supporting learning, mobile learning for senior high school students. Learning media mobile learning using softwaremoodle can be accessed online through mobile learning media. Keywords: Android, Workbook, Mobile Learning, Theory of Special Relativity, Moodle.
TRANSPORT SEDIMEN YANG DISEBABKAN OLEH LONGSHORE CURRENT DI PANTAI KECAMATAN TELUK SEGARA KOTA BENGKULU Supiyati Supiyati; Deddy Bakhtiar; Siti Fatimah
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (459.456 KB) | DOI: 10.21009/0305020403

Abstract

Sediment transport caused by longshore current impact on the occurrence of rapid sedimentation of the coastal at Teluk Segara District Bengkulu City. The research aimed to determine the velocity of longshore current, wave energy and sediment transport happened of the coastal at Teluk Segara District which includes of the coastal at pasar Bengkulu, the coastal at Zakat, and the coastal at Pondok Besi. The method used in the research is a direct measurement in the field with the measured parameter is the height of a breaking wave, wave period, angle of breaking wave, and the velocity of longshore current. The results showed in the coastal at pasar Bengkulu average velocity of longshore current is 0.12 m/s, the wave energy is 390.16 N/m, and sediment transport is 110.956 m3/day. The coastal at Zakat average velocity of longshore current is 0.06 m/s, the wave energy is 289.52 N/m, and sediment transport is 51.085 m3/day. While the coastal at Pondok Besi average velocity of longshore current is 0.02 m/s, the wave energy is 200.20 N/m, and sediment transport is 16.026 m3/day. Keywords: Sedimentation, longshore current, wave energy, Teluk Segara.
PREDIKSI VOLUME POTENSI LONGSORAN BERDASARKAN INVERSI RESISTIVITAS (Studi Kasus di Amahusu dan Erie Ambon) Matheus Souisa; Lilik Hendrajaya; Gunawan Handayani
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (648.145 KB) | DOI: 10.21009/0305020404

Abstract

Investigations of landslides conducted intensive from year to year due to the intensity of the landslides that continues to increase along with the rainy season. This study aims to determine volume prediction of landslides through inversion resistivity of the subsurface in the area of the landslide. Research sites in the hills Amahusu and Erie District of Nusaniwe Ambon. Survey data retrieval using geoelectric resistivity with the Wenner-Schlumberger configuration and measurement is divided into several lines. The results of the study provide characterization of the landslide area slide-type rotation. The slip area of landslides is characterized by low resistivity and with layers of rock structure in the form of a layer of clay mixed with weathered rock and water-saturated clay layer. Predictive value of landslide volume when occurence the volume landslide for the location Amahusu of 70,953.9 m3 and Erie location of 34,042.3 m3, while the predictive value of the potential volume of landslides for the location Amahusu of 50,603.3 m3 and Erie location of 3,399.4 m3. The potential failure of a slope with a steep slope can predict occur of landslides subsequent in the original location. Keywords: landslides, volume prediction, inversion resistivity, slope failure.
ANALISIS PARAMETER FISIKA TERHADAP PENGENDALIAN TEKANAN LUMPUR PENGEBORAN STUDI KASUS: PREVENSI KICK DAN BLOWOUT Wenny Wahyuni; Lilik Hendrajaya
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.619 KB) | DOI: 10.21009/0305020405

Abstract

In the drilling proses mud drilling in use, type of drill bit, casing and cementing is a matter that must be considered. Mud drilling injected into the drill pipe must be adapted to conditions existing rock formations below ground level, where the pressure of the mud drilling (hidrostatik pressure) must be greater than the formation pressure. Hidrostatik pressure associated with a mud weight, it can be analyzed using hydrostatic equation. If the control hidrostatik pressure in the annulus can not be maintained properly and the formation pressure exceeds the pressure of the drilling mud, as shown by the difference in pressure value mud injected and were out past the annulus is not equal to zero (P ≠ 0) then the formation fluid will rise to the surface. According to research that has been carried, the flow of formation fluid in the drilling of occurred at depths of 565, 577 and 797 ft caused due to loss circulation of mud, the flow of formation fluids regarded as a kick, if the kick can not be resolved then it will result in blowout. Keywords: Kick, loss circulation, hidrostatik pressure, pore pressures.
PENERAPAN GEOGRAPHICALLY WEIGHTED REGRESSION PADA LAPISAN OZON SEBAGAI EARLY WARNING BENCANA DI INDONESIA Defi Yusti Faidah
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (852.89 KB) | DOI: 10.21009/0305020406

Abstract

The ozone layer depleting led to an increased ultraviolet radiation that falls to the earth's surface. This can have a negative impact on the environment and health. Effects caused by the depletion of the ozone layer, among others, environmental degradation, limited water resources, damage to the marine food chain, the destruction of coral reefs and other marine resources, declining agricultural production that could undermine food security, and other natural disasters. It takes a statistical model to predict the occurrence of rain in the city of Bandung which is intended as an early warning to disasters disebablan by the depletion of the ozone layer. The statistical model used is Geographically Weighted Regression (GWR). Modelling GWR attention to the geographical location of the region because each region has different characteristics. In this study involving variables expected effect on the ozone layer in Indonesia. Variables used are CO2 and water vapor. Based on modeling results can be known factors that significantly affect the ozone layer for each location point. Retrieved information is interesting and important differences from each point the location of the factors that significantly influence the ozone layer. Expected by unknown factors that influence can be used as input to the government to minimize the occurrence of the disaster caused by the depletion of the ozone layer.English version of the abstract be written here. Keywords: Early Warning, GWR, Ozon.
ANALISIS PERCEPATAN TANAH MAKSIMUM, KECEPATAN TANAH MAKSIMUM DAN MMI DI WILAYAH SULAWESI UTARA Muhammad Altin Massinai; K. R. Amaliah; Lantu Lantu; Virman Virman; Muhammad Fawzy Ismullah. M
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (646.23 KB) | DOI: 10.21009/0305020407

Abstract

North Sulawesi is a region of high seismicity levels for vulnerability on the Sulawesi Island. The method for this research to detect these vulnerabilities, which examines the relationship between Peak Ground Acceleration (PGA), Peak Ground Velocity (PGV) and Modified Mercalli Intensity (MMI). The data used in this experiment is earthquake secondary recorded data. The data proceed using empirical equation that correlated with PGV and PGA - vs - earthquake intensity. The result of calculation then become basis of the data to create map of PGA and PGV also relation between PGA with PGV, with MMI and relation between PGV with MMI. The result of analysis showed that highest value PGA in North Sulawesi is 46,33gal and PGV is 20,67cm/s. The region of that have has the biggest earthquake is North Bolaang Mongondow with earthquake intensity is VII. Keywords: Earthquake, Intensity, Peak Ground Velocity, Peak Ground Acceleration.

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